Answers

Subtract 63/80 from 10/72

10/72 - 63/80 is -467/720.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 72 × 10 = 720,
   10/72 = 10 × 10/72 × 10 = 100/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   63/80 = 63 × 9/80 × 9 = 567/720
4. Subtract the two like fractions:
   100/720 - 567/720 = 100 - 567/720 = -467/720

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